Subject: Current part of emacs red, other parts blue

From: 積丹尼 Dan Jacobson <[email-masked]>
Date: Sat, 21 Aug 2021 14:05:45 +0800

$ emacs
C-x 2
C-x 3
C-x 2
C-x 3
We have chopped the screen into little chunks.
It would be nice to have the current chunk's background e.g., red,
and the other chunks' blue.
https://stackoverflow.com/questions/33195122/highlight-current-active-window
didn't work for me.